JP2024079260A - Thermal expansion material mounting tool and fireproof compartment penetration tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermal expansion material mounting tool capable of further reliably suppressing spread of a fire, and fireproof compartment penetration tool including the thermal expansion material mounting tool.

SOLUTION: There is provided a thermal expansion material mounting tool 2 for installing a thermal expansion material expanding by receiving heat in a through-hole formed to penetrate the inside of a building or a compartment for partitioning the inside from the outside. The thermal expansion material mounting tool comprises a cylindrical body 4 having fire resistance and formed in a cylindrical shape so as to be insertable into the through-hole. The cylindrical body is configured to serve as an external wall, when the thermal expansion material provided inside the cylinder expands by receiving heat and primarily expands radially inward, and includes extension allowable parts 42 allowing parts of the thermal expansion material to extend to an external area radially outward the cylindrical body. The extension allowable parts are disposed at least in an adjacent part 442 adjacent to an inner part 441, at the other end side in the circumferential direction, the inner part disposed radially inward the other end in the circumferential direction of the cylindrically-shaped cylindrical body, where the thermal expansion material may be installed on the inner surface side of the adjacent part.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a thermal expansion material mounting fixture for providing a thermal expansion material that expands when exposed to heat in a through hole formed to penetrate a partition that separates the inside and outside or the inside of a building, and a fire-resistant partition penetration device equipped with the thermal expansion material mounting fixture.

Conventionally, the fireproof sleeve described in Patent Document 1 is known as a fireproof sleeve used in a fireproofing method for a through hole formed in a wall of a building. The fireproof sleeve includes a cylindrical sleeve body and a flange plate extending radially outward from one axial end of the sleeve body, and the sleeve body is formed by combining a pair of sleeve pieces having a half-split shape. Such a fireproof sleeve is attached to a through hole formed in a wall by combining a pair of sleeve pieces to form the sleeve body and inserting the sleeve body into the through hole until the flange plate abuts against the wall. In addition, the outer edge portion of the through hole can be concealed by the flange plate extending radially outward from the sleeve body. It is said that the sleeve body is pressed against the inner wall of the through hole by filling the inside of the sleeve body attached to the wall with a thermally expandable fireproof pack.

When a fire breaks out, the fire-resistant sleeve described above expands the heat-expandable fire-resistant pack filled inside the sleeve body, blocking the internal space of the sleeve body and preventing the fire from spreading through the through-hole.

Patent No. 4196383

However, in the conventional fireproof sleeves described above, even if the thermally expandable fireproof pack expands, fire may still spread, and improvements were required.

Therefore, the present invention aims to provide a thermal expansion material mounting fixture that can more reliably suppress the spread of fire, and a fire-resistant compartment penetration device equipped with the thermal expansion material mounting fixture.

The thermal expansion material mounting fixture of the present invention is a thermal expansion material mounting fixture for installing a thermal expansion material that expands when exposed to heat in a through hole formed to penetrate the inside of a building or a partition that divides the inside and outside of the building, and has a fire-resistant cylindrical body formed in a cylindrical shape so that it can be inserted into the through hole, and the cylindrical body is configured to serve as an outer wall through which the thermal expansion material provided inside the cylinder mainly expands radially inward when the thermal expansion material expands when exposed to heat, and has an extension-permitting portion that allows a portion of the thermal expansion material to extend to an external area radially outward of the cylindrical body, and the extension-permitting portion is disposed at least in an adjacent portion adjacent to the inner portion disposed radially inward of the other circumferential end of the cylindrical body formed in a cylindrical shape, and the adjacent portion is configured so that the thermal expansion material can be installed on the inner side.

With this configuration, the extension allowance portion is provided in the adjacent portion, so that the thermal expansion material provided inside the cylindrical body not only expands radially inward inside the cylindrical body, but also extends radially outward in the adjacent portion via the extension allowance portion. Therefore, by positioning the inner portion radially inward from the other circumferential end, a step is formed by positioning the adjacent portion radially inward from the other circumferential end, and even if a gap is formed between the outer peripheral surface of the cylindrical body and the inner wall of the through hole at the step, the gap can be blocked by the thermal expansion material extending from the extension allowance portion, and the through hole formed in the partition is entirely blocked, thereby reliably suppressing the spread of fire.

The extension-permitting portion also has an extension hole that penetrates the cylindrical body in the radial direction, and the extension hole is configured to be a hole that is long in the axial direction, or multiple extension holes can be provided spaced apart in the axial direction.

With this configuration, the extension hole is a long hole that continues in the axial direction, or multiple extension holes are provided in adjacent parts spaced apart in the axial direction, so that even if the positional relationship between the inner wall of the through hole and the cylindrical body in the axial direction shifts, the thermal expansion material can close the gap that is formed between the outer circumferential surface of the cylindrical body and the inner wall of the through hole.

The thermal expansion material mounting fixture of the present invention is a thermal expansion material mounting fixture for installing a thermal expansion material that expands when exposed to heat in a through hole formed to penetrate the interior of a building or a partition that separates the interior from the exterior, and has a fire-resistant cylindrical body that is formed into a cylindrical shape so that it can be inserted into the through hole, and when formed into a cylindrical shape, it serves as an outer wall for the thermal expansion material provided inside to expand mainly radially inward, and the cylindrical body has an inner part that is positioned radially inward from the other circumferential end of the cylindrical body when formed into a cylindrical shape, and an adjacent part that is adjacent to the inner part on the other circumferential end side, and the adjacent part is configured to have an outer peripheral mounting part that can mount the thermal expansion material on the outer peripheral surface.

With this configuration, the thermal expansion material can be attached to the outer peripheral surface of the adjacent portion by the outer peripheral mounting portion, so the thermal expansion material attached to the outer peripheral mounting portion can expand radially outward of the adjacent portion. Therefore, by positioning the inner portion radially inward of the other circumferential end, a step is formed by positioning the adjacent portion radially inward from the other circumferential end, and even if a gap is formed between the outer peripheral surface of the cylindrical body and the inner wall of the through hole at the step, the gap can be blocked by the thermal expansion material, and the through hole formed in the partition can be completely blocked, reliably suppressing the spread of fire.

The fire-resistant compartment penetrator of the present invention is a fire-resistant compartment penetrator that is inserted into a through hole formed to penetrate the interior of a building or a partition that separates the interior from the exterior, and is fire-resistant and includes a thermal expansion material mounting device having a cylindrical body formed into a cylindrical shape so that it can be inserted into the through hole, and a thermal expansion material that expands when exposed to heat, and the cylindrical body includes an inner part that is arranged radially inward from the other circumferential end of the cylindrical body when formed into a cylindrical shape, and an adjacent part that is adjacent to the inner part on the other circumferential end side, and the adjacent part is configured so that the thermal expansion material can expand radially outward in the adjacent part.

With this configuration, the thermal expansion material can extend radially outward from the adjacent portion, so that a step is formed when the adjacent portion is positioned radially inward from the other circumferential end, and even if a gap is formed between the outer circumferential surface of the cylindrical body and the inner wall of the through hole at the step, the gap can be blocked by the thermal expansion material, and the through hole formed in the partition can be completely blocked, reliably suppressing the spread of fire.

The present invention provides a thermal expansion material mounting fixture that can more reliably suppress the spread of fire, and a fire-resistant compartment penetration device equipped with the thermal expansion material mounting fixture.

FIG. 2 shows the inner surface of a fire-resistant compartment penetrator according to an embodiment of the present invention. FIG. 2 is a view showing the outer surface of the fire-resistant compartment penetrator. FIG. FIG. 2 is a view showing the fire-resistant compartment penetrator in a cylindrical shape. FIG. 2 is a view showing the state in which the fire-resistant compartment penetrator is inserted into a through hole. FIG. 6 is a cross-sectional view showing the inside of the fire-resistant compartment penetrator shown in FIG. 5 . FIG. 7 is an enlarged view of a portion VII shown in FIG. 6, showing a state in which a folded portion is closed. FIG. 7 is an enlarged view of a portion VII shown in FIG. 6, showing a state in which a folded portion is opened. 8 is a cross-sectional view taken along line VIII-VIII of FIG. 5. FIG. 6 is a diagram showing the state of the fire-resistant compartment penetrator shown in FIG. 5 during a fire. 10 is a cross-sectional view taken along the line XX shown in FIG. FIG. 2 shows a fire-resistant compartment penetrator according to another embodiment of the present invention. FIG. 11 is a diagram showing a state in which a fire-resistant compartment penetrator according to another embodiment of the present invention is inserted into a penetration hole.

A fireproof compartment penetrator 1 according to one embodiment of the present invention will be described with reference to Figures 1 to 10. For ease of explanation, the front and rear sides will be described based on the direction of the through hole 7a formed in the partition 7 (specifically, based on the direction shown in Figure 5). The axial direction will be described based on the axial direction of the fireproof compartment penetrator 1, and the circumferential direction will be described based on the circumferential direction of the cylindrically formed fireproof compartment penetrator 1 (specifically, based on the direction shown in Figure 1). Furthermore, the radial direction will be described based on the radial direction of the cylindrically formed fireproof compartment penetrator 1 (specifically, the direction penetrating the paper surface of Figure 1).

The fire-resistant compartment penetrator 1 is inserted into a through hole 7a formed in a partition 7 that separates the inside and outside or the inside of a building, and is used to suppress the spread of fire through the through hole 7a in the event of a fire. The partition 7 in this embodiment is a hollow wall in which two wall bodies 71 are provided spaced apart in the thickness direction. In addition, a long body 8 (specifically, a bundle of pipes and wiring) is inserted inside the fire-resistant compartment penetrator 1 inserted into the partition body 7.

The fire-resistant compartment penetration tool 1 is a plate-like body as shown in Figs. 1 to 3 that is formed into a cylindrical shape as shown in Fig. 4, and can be inserted into the through hole 7a in the cylindrical state. Specifically, the fire-resistant compartment penetration tool 1 includes a thermal expansion material mounting tool 2 in which a thermal expansion material 3 can be installed, and a thermal expansion material 3 that is installed inside the thermal expansion material mounting tool 2 and expands when exposed to heat.

As shown in Figures 1 to 4, the thermal expansion material mounting fixture 2 includes a cylindrical body 4, a positioning portion 5 provided on the outer peripheral surface of the cylindrical body 4, and a blocking member 6 attached to the inside of the cylindrical body 4.

The cylindrical body 4 is made of a thin metal plate and has a hardness that allows it to be rolled by hand from the expanded state shown in Figs. 1 to 3 into a cylindrical shape as shown in Fig. 4. The cylindrical body 4 also has an outer wall portion 41 that serves as an outer wall for the thermal expansion material 3 provided inside to expand mainly radially inward, an extension allowance portion 42 that allows a part of the thermal expansion material 3 provided inside to extend radially outward from the cylindrical body 4, an attachment portion 43 to which the blocking member 6 is attached, and a claw portion 411 that assists in attachment of the cylindrical body 4 to the partition body 7 in which the through hole 7a is formed by bending it outward from the cylinder. The cylindrical body 4 also has one end portion 44 that constitutes one circumferential end and the other end portion 45 that constitutes the other circumferential end.

As shown in FIG. 1, a one-end locking portion 44a that can be locked to the other-end portion 45 is formed on the other axial end side of the cylindrical body 4 at the one-end portion 44. A other-end locking portion 45a that can be locked to the one-end locking portion 44a is formed on the other axial end side of the cylindrical body at the other-end portion 45. Specifically, the one-end locking portion 44a is formed as a notch at the other axial end of the one-end portion 44, and multiple one-end locking portions 44a are provided at a predetermined interval along the circumferential direction. The other-end locking portion 45a is formed as a notch at one location at the other axial end of the other-end portion 45, and is configured to be locked to one of the one-end locking portions 44a.

As shown in Figures 4, 6 and 8, the one end portion 44 is disposed radially inward of the tubular body 4 with respect to the other end portion 45. The inner portion 441 is a portion of the one end portion 44 disposed radially inward of the other end portion 45. The outer portion 451 is a portion of the other end portion 45 disposed radially outward of the inner portion 441. In the following explanation, as shown in Figure 4, a case will be described in which the one end side locking portion 44a located closest to the one circumferential end side is locked to the other end side locking portion 45a.

As shown in FIG. 8, the adjacent portion 442 is a portion of the one end portion 44 adjacent to the overlapping portion with the other end portion 45.

1 to 4, the outer wall portion 41 is provided with the thermal expansion material 3 inside and serves as an outer wall for the thermal expansion material 3 provided inside to expand radially inward. In other words, the outer wall portion 41 defines a space in which the thermal expansion material 3 can be provided inside and surrounds the thermal expansion material 3 provided inside with a thin plate material over the entire circumferential direction. The outer wall portion 41 has a strength sufficient to prevent it from breaking due to the force of the thermal expansion material 3 expanding when exposed to heat. Such an outer wall portion 41 is configured to hold the thermal expansion material 3 from the radially outward side when the thermal expansion material 3 provided inside expands when exposed to heat, thereby suppressing the thermal expansion material 3 from expanding radially outward, and serves as an outer wall for the expanded thermal expansion material 3 to expand inward at least to the extent that it closes the gap between the cylindrical body 4 and the elongated body 8. In this embodiment, the thermal expansion material 3 is attached to the outer wall portion 41 by the adhesiveness of the thermal expansion material 3 itself, but the claw portion 411 can be bent toward the inside of the cylinder to engage with the thermal expansion material 3, helping to attach the thermal expansion material 3 to the outer wall portion 41.

The extension allowance portion 42 is a portion that allows the thermal expansion material 3 provided inside the cylindrical body 4 to extend to the external region on the radially outward side. The extension allowance portion 42 includes a plurality of circumferential extension allowance portions 421 and a plurality of local extension allowance portions 425 provided at one end portion 44 in the circumferential direction. Each of the circumferential extension allowance portions 421 and each of the local extension allowance portions 425 includes one extension hole 42a, 42b formed to penetrate the thin plate constituting the cylindrical body 4 in the thickness direction. The extension allowance portion 42 allows a part of the thermal expansion material 3 to extend radially outward through each extension hole 42a, 42b when the thermal expansion material 3 expands. The extension holes 42a, 42b are long holes of a size that allows the thermal expansion material 3 provided inside the cylindrical body 4 to extend radially outward when thermally expanded, and are arranged so that the longitudinal direction of the hole is along the circumferential direction and the short side direction is along the axial direction. The width of each extension hole 42a, 42b in the short direction is set between 1mm and 10mm.

Each of the all-round extension allowance portions 421 has an extension hole 42a as a long hole extending in the circumferential direction, and each of the all-round extension allowance portions 421 is arranged so that each extension hole 42a extends continuously around the circumferential direction of the cylindrical body 4. In other words, each all-round extension allowance portion 421 does not allow the thermal expansion material 3 to extend radially outward around the cylindrical body 4, but by arranging multiple all-round extension allowance portions 421 continuously in the circumferential direction, it becomes possible for the thermal expansion material 3 to extend radially outward around the cylindrical body 4.

The extension holes 42a are arranged to be spaced apart from each other in both the circumferential and axial directions. Each extension hole 42a is arranged to overlap in the circumferential direction with the extension hole 42a adjacent to it in the axial direction. In other words, the extension holes 42a are arranged such that the longitudinal ends of the holes partially overlap in the circumferential direction with other extension holes 42a that are spaced apart in the axial direction and adjacent to each other.

Furthermore, the extension holes 42a are adjacent to each other and spaced a predetermined distance L1 in the axial direction. The axial distance L1 between the extension holes 42a is set to be smaller than the thickness of the partition 7 (particularly the wall 71 constituting the partition 7) of the through hole 7a in which the thermal expansion material mounting device 2 is installed. Specifically, the axial distance L1 between the extension holes 42a is set to 10 mm or less. It is also possible to configure the axial distance L1 between the extension holes 42a to be larger than the thickness of the partition 7.

As shown in FIG. 2, the multiple local extension allowance portions 425 are arranged at intervals in the axial direction within a predetermined range of the cylindrical body 4, within a predetermined range of the axial mid-way portion of one end portion 44 of the cylindrical body 4. As a result, the multiple extension holes 42b are arranged at intervals in the axial direction within the predetermined axial range. The predetermined range is, for example, a range extending over a range of at least 1/4, more preferably at least 1/2, of the axial length of the cylindrical body 4.

As shown in FIG. 4, each local extension allowance portion 425 has an extension hole 42b, which is a long hole extending in the circumferential direction. Each extension hole 42b is provided from the inner portion 441 to the adjacent portion 442. Specifically, one end of the extension hole 42b in the circumferential direction is located on the one end side of the one end side locking portion 44a located at the most one end side in the circumferential direction, and the other end of the extension hole 42b is located on the other end side of the one end side locking portion 44a located at the most other end side in the circumferential direction. Because of this configuration, even if any one end side locking portion 44a is locked to the other end side locking portion 45a, the one end of the extension hole 42b in the circumferential direction is located in the inner portion 441, and the other end of the extension hole 42b in the circumferential direction is located in the adjacent portion 442. In addition, the axial length of the extension hole 42b (the width direction length of the long hole) is smaller than the axial separation distance between the extension holes 42b.

As shown in FIG. 4, the attachment portion 43 is provided at one axial end of the cylindrical body 4. That is, the attachment portion 43 is disposed on one end side of the outer wall portion 41 in the axial direction, and is adjacent to the outer wall portion 41 in the axial direction. The attachment portion 43 is configured such that the inner circumferential surface is free of holes or irregularities so that the blocking member 6 can be attached to the inner circumferential surface. Note that the attachment portion 43 may be configured such that holes or irregularities are formed on the inner circumferential surface, as long as the blocking member 6 can be attached to the inner circumferential surface.

The positioning portion 5 is made of a band-shaped elastic material such as sponge, soft rubber, or foamed polyurethane, and is attached to the outer circumferential surface of the cylindrical body 4 with an adhesive or the like, on the axial end side of the one-circumference extension allowance portion 421, which is located closest to the axial end side. The positioning portion 5 has the function of a stopper that positions the cylindrical body 4 relative to the through-hole 7a when the cylindrical body 4 is inserted into the through-hole 7a, by abutting the end face on the other axial end side of the positioning portion 5, which is located away from the one axial end side of the cylindrical body 4 to the other end side, against the wall surface of the partition body 7 (see FIG. 5), and also hides the gap between the outer circumferential surface of the cylindrical body 4 and the inner wall surface of the through-hole 7a when in abutment.

As shown in Figures 1 and 2, the blocking member 6 is composed of a fire-resistant sheet such as aluminum glass cloth that can be deformed by an external force, and includes an attachment portion 61 that can be attached to the attachment portion 43, a blocking main body portion 62 that blocks the space between the inner surface of the cylindrical body 4 and the long body 8 inserted into the cylindrical body 4, a gap shielding portion 64 that can be deformed to follow the shape of the outer surface of the long body 8, and a shape retaining member 65 that retains the shape of the gap shielding portion 64.

The mounting portion 61 is provided at the end on the other axial end side. Specifically, the mounting portion 61 is provided with tape (not shown) for attaching to the mounting portion 43. The mounting portion 61 is attached to the inner surface of the mounting portion 43 over the entire circumferential area.

The occlusion body 62 includes a pipe covering portion 621 that covers the outer surface of the elongated body 8, and an expansion restriction portion 622 that is located closer to the attachment portion 61 than the pipe covering portion 621.

The gap shielding portion 64 is made of a flammable elastic material, such as a urethane sponge material, and is fixed to the radially inner surface of the blocking member 6 with an adhesive, as shown in FIG. 3.

The shape-retaining member 65 is, for example, made of a metal wire, and is arranged by sandwiching the tip of the blocking member 6 at the folded-back portion as shown in FIG. 3. The shape-retaining member 65 has a hardness that allows it to be deformed and to retain the shape of the gap shielding portion 64 when the portion where the gap shielding portion 64 is arranged is pressed by hand from the radially outer side so as to align it with the piping that constitutes the elongated body 8.

The occlusion body 62 is provided so as to extend radially inward from the other axial end of the mounting portion 61 when it is attached to the mounting portion 43 (see FIG. 6). With this configuration, the outer edge portion of the occlusion body 62 (the bent portion 63 described below) is located on the other end side of the axial end of the cylindrical body 4, and when the long body 8 is covered with the pipe covering portion 621, a part of the occlusion body 62 is located between the axial end of the cylindrical body 4 and the outer wall portion 41. It is also possible to arrange it so that when the long body 8 is covered with the pipe covering portion 621, the entire occlusion body 62 is located between the axial end of the cylindrical body 4 and the outer wall portion 41.

As shown in FIG. 1, double-sided tape 66 is provided on the other circumferential end of the occlusion body 62. The double-sided tape 66 adheres both circumferential ends of the occlusion body 62 to each other, thereby maintaining the occlusion body 62 in a cylindrical shape.

As shown in FIG. 3 and FIG. 7(a) and (b), a bent portion 63 is provided at the connection portion between the occlusion body portion 62 and the mounting portion 61. The bent portion 63 is a portion where the end of the sheet-like occlusion member 6 is bent so that the outer wall portion 41 side (the other end side in the axial direction) becomes a mountain. The bent portion 63 is formed by first folding the mounting portion 61 back toward the other end side in the axial direction relative to the occlusion body portion 62, and then gluing the folded end of the mounting portion 61 to the mounting portion 43, so that the bent portion 63 with the other end side in the axial direction becomes a mountain is formed. In this embodiment, the mounting portion 61 is folded back once relative to the occlusion body portion 62, but it may be folded back two or more times. The bent portion 63 is disposed at the other end side in the axial direction of the mounting portion 43, and is disposed away from one end side in the axial direction of the cylindrical body 4 to the other end side by the axial length of the mounting portion 43. When the closure body 62 is pulled radially inward, the bent portion 63 receives a pulling force and changes from the closed state shown in FIG. 7(a) to the expanded state shown in FIG. 7(b).

The thermal expansion material 3 is a material that has thermal expansion and fire resistance, and is flame retardant, semi-non-flammable, or non-flammable. Specifically, the thermal expansion material 3 has an expansion performance sufficient to block the inside of the thermal expansion material mounting fixture 2 when subjected to heat generated by a fire. As shown in FIG. 1, the thermal expansion material 3 is provided at multiple locations inside the thermal expansion material mounting fixture 2. Specifically, the thermal expansion material 3 comprises a first thermal expansion material 31 provided inside the cylindrical body 4, and a second thermal expansion material 32 provided inside the blocking member 6.

The first thermal expansion material 31 is provided from one end to the other end in the circumferential direction in a portion corresponding to the outer wall portion 41 and the extension allowance portion 42 on the radially inner surface (the surface on the long body side) of the cylindrical body 4. The first thermal expansion material 31 is attached to the inner surface of the cylindrical body 4 by the self-adhesive properties of the first thermal expansion material 31 itself.

The second thermal expansion material 32, like the first thermal expansion material 31, is provided on the radially inner surface (the surface on the long body side) of the blocking member 6 from one end to the other end in the circumferential direction. The second thermal expansion material 32 is also provided on the other axial end side of the gap shielding portion 64 so as to be adjacent to the gap shielding portion 64 in the axial direction. The second thermal expansion material 32 is attached to the inner surface of the blocking member 6 by the self-adhesive properties of the first thermal expansion material 31 itself.

The method of using the fireproof compartment penetrator 1 described above will be explained with reference to Figures 5 to 10. First, the method of attaching the fireproof compartment penetrator 1 to the penetration hole 7a will be explained with reference to Figures 5 to 8.

As shown in FIG. 5, the fireproof compartment penetrator 1 is formed in a cylindrical shape and is attached by being inserted into a through hole 7a formed in a partition 7 of a building. In this embodiment, the partition 7 is a hollow wall composed of two walls 71 spaced apart in the thickness direction, with a space formed between the walls 71. An elongated body 8 is inserted into this through hole 7a. In the following explanation, a case will be described in which the fireproof compartment penetrator 1 is attached to a through hole 7a into which an elongated body 8 has already been inserted.

When attaching the fireproof compartment penetrator 1 to the through hole 7a, first, the unfolded fireproof compartment penetrator 1 is rolled up by hand to deform it into a cylindrical shape and cover the periphery of the elongated body 8. Next, the one end locking portion 44a of the cylindrical body 4 is locked to the other end locking portion 45a, and then the release paper of the double-sided tape 66 provided on the blocking member 6 is peeled off, and the one circumferential end and the other end of the blocking member 6 are bonded via the adhesive surface of the double-sided tape 66.

Next, the fireproof compartment penetrator 1, which is covering the periphery of the long body 8, is inserted into the through hole 7a from the front side to the back side with the cylindrical body 4 facing the through hole 7a, and the insertion is completed when the positioning portion 5 abuts the front wall surface of the through hole 7a. After the insertion is completed, a light force is applied to the cylindrical body 4 to release the engagement between the one end locking portion 44a and the other end locking portion 45a. The cylindrical body 4 then expands in diameter due to its own elastic restoring force, and its outer surface comes into contact with the inner wall of the through hole 7a. The axial end of the cylindrical body 4 that has been inserted into the through hole 7a is in a state where it protrudes forward from the front wall surface of the through hole 7a. When the fireproof compartment penetrator 1 is inserted to a predetermined position in the through hole 7a, as shown in FIG. 5, each of the one-circumference extension allowance parts 421 provided adjacent to the other axial end side (rear side) of the positioning part 5 is arranged to face the inner wall of the through hole 7a of the front wall body 71. On the other hand, any of the local extension allowance parts 425 is arranged on the rear side of the front wall body 71, specifically, facing the hollow part between the walls 71, 71 and the inner wall of the through hole 7a of the rear wall body 71. Since the local extension allowance parts 425 are provided in a plurality of parts spaced apart in the axial direction of the cylindrical body 4, even if the separation distance between the pair of walls 71, 71 constituting the partition body 7 is different or an error occurs when inserting the fireproof compartment penetrator 1 into the through hole 7a, any of the local extension allowance parts 425 can be opposed to the inner wall on the rear side of the through hole 7a.

When the fireproof compartment penetrator 1 is placed at a predetermined position in the through hole 7a, as shown in FIG. 8, the inner part 441 of one end portion 44 of the cylindrical body 4 and the outer part 451 of the other end portion 45 overlap in the radial direction, so that a step 4A of the thickness of the fireproof compartment penetrator 1 is formed between the outer peripheral surface of the outer part 451 and the outer peripheral surface of the adjacent part 442. As a result, a gap is formed between the inner wall of the through hole 7a and the adjacent part 442.

After inserting the fireproof compartment penetrator 1 through the through hole 7a, the blocking member 6 blocks the gap between the inner circumferential surface of the cylindrical body 4 and the outer circumferential surface of the elongated body 8. Specifically, as shown in FIG. 7(a), the bent portion 63 in the closed state is deformed in the opening direction as shown in FIG. 7(b), so that the expansion restricting portion 622 of the blocking main body 62 extends radially inward from the inner circumferential surface of the cylindrical body 4, and the expansion restricting portion 622 blocks the gap between the inner circumferential surface of the cylindrical body 4 and the outer circumferential surface of the elongated body 8. Here, the bent portion 63 (the outer edge portion of the expansion restricting portion 622) is positioned at a position spaced apart from one axial end of the cylindrical body 4 to the other end, so that at least a part of the expansion restricting portion 622 extending radially inward is located inside the cylindrical body 4. As shown in FIG. 6, in this embodiment, the entire expansion restricting portion 622 extends in a direction intersecting the radial and axial directions (extending obliquely relative to the radial direction), but this configuration is not limited thereto. For example, the expansion restricting portion 622 can be configured so that the portion from the outer edge portion to the radially inward midpoint extends along the radial direction of the cylindrical body 4, and the portion radially inward from the midpoint extends obliquely relative to the radial direction, or the entire expansion restricting portion 622 can be configured to extend along the radial direction.

Next, the pipe covering part 621 is attached to the outer peripheral surface of the elongated body 8. The pipe covering part 621 maintains its attached state to the outer peripheral surface of the elongated body 8 due to its own shape retention.

When the pipe covering part 621 is attached to the outer peripheral surface of the long body 8, the gap shielding part 64 deforms to follow the shape of the outer peripheral surface of the long body 8, sealing the gap between the long body 8 and the pipe covering part 621. Specifically, the gap shielding part 64 follows the unevenness formed on the outer peripheral surface of the long body 8 and the shape of the valleys formed between multiple pipes and wiring, sealing the gap between the pipe covering part 621 and the long body 8. In addition, when a force is applied to the pipe covering part 621 so as to move it along the outer peripheral surface of the long body 8, the gap shielding part 64 is held pressed against the long body 8 by the shape retaining member 65, and maintains a state of following the shape of the outer peripheral surface of the long body 8.

Next, we will explain what happens if a fire breaks out near the through hole 7a with reference to Figures 9 and 10.

As shown in FIG. 9, when a fire breaks out near the through hole 7a, the thermal expansion material 3 (first thermal expansion material 31 and second thermal expansion material 32) of the fireproof compartment penetrator 1 expands due to heat. Note that, from the time of the fire outbreak until at least the time the thermal expansion material 3 expands, the blocking member 6 blocks the space between the cylindrical body 4 and the elongated body, so that the flame can be prevented from flowing from the front side to the back side or from the back side to the front side of the through hole 7a through the cylindrical body 4. Therefore, the spread of the fire can be prevented even before the thermal expansion material 3 expands. On the other hand, the non-fireproof members of the fireproof compartment penetrator 1, i.e., the gap shielding portion 64 and the positioning portion 5, burn or melt (hereinafter referred to as burnt).

When the first thermal expansion material 31 receives heat, it tends to expand in the radial and axial directions. However, because the mounting portion 61 of the blocking member 6 is attached to the mounting portion 43 of the cylindrical body 4, the expansion of the first thermal expansion material 31 toward the one end side (nearby side) in the axial direction is restricted by the expansion restricting portion 622. Specifically, since the expansion restricting portion 622 functions as a resistance against the first thermal expansion material 31 that tends to expand toward the one end side (nearby side) in the axial direction, the first thermal expansion material 31 first expands radially inward of the cylindrical body 4 and then extends radially outward through the extension holes 42a, 42b. As a result, the expansion restricting portion 622 restricts the expansion of the first thermal expansion material 31 toward the one end side (nearby side) in the axial direction.

As a result, the inside of the cylindrical body 4 is blocked by the first thermal expansion material 31 expanding radially inward, while the space between the outer peripheral surface of the cylindrical body 4 and the inner wall of the through hole 7a is reliably blocked by the first thermal expansion material 31 expanding radially outward through the extension holes 42a, 42b of the extension allowance portion 42.

As shown in FIG. 10, when the first thermal expansion material 31 located on the inner peripheral surface of the outer portion 451 expands, the inner portion 441 is pushed radially inward, and the entire one end portion 44 moves radially inward. Accordingly, the adjacent portion 442 adjacent to the inner portion 441 also moves radially inward away from the outer portion 451. As a result, the radial width of the step 4A formed in the adjacent portion 442 expands, and the gap formed between the adjacent portion 442 and the inner wall of the through hole 7a at the time of installation tends to expand further.

However, since the first thermal expansion material 31 extends radially outward from the extension allowance portion 42 (one of the multiple one-way extension allowance portions 421 that is located in the adjacent portion 442 and the local extension allowance portion 425) provided in the adjacent portion 442, the gap formed between the adjacent portion 442 and the inner wall of the through hole 7a can be blocked by the extended first thermal expansion material 31. In FIG. 9, the gap between the front wall 71 and the adjacent portion 442 is blocked by the thermal expansion material 3 extending from the one-way extension allowance portion 421 that is located in the adjacent portion, and the gap between the rear wall 71 and the adjacent portion 442 is blocked by the thermal expansion material 3 extending from the local extension allowance portion 425.

In addition, the second thermal expansion material 32 expands radially inward when exposed to heat, blocking the gap between the blocking body portion 62 (pipe covering portion 621) and the outer circumferential surface of the elongated body 8.

After the first thermal expansion material 31 has expanded sufficiently, the blocking member 6 and the second thermal expansion material 32 may fall off the cylindrical body 4 or burn down due to the heat or wind caused by the fire. Even in such a case, the first thermal expansion material 31 has expanded sufficiently, so that the spread of the fire can be suppressed. That is, the blocking member 6 can suppress the spread of the fire through the through hole 7a as long as it blocks the space between the inner surface of the cylindrical body 4 and the outer surface of the elongated body 8 at least until the first thermal expansion material 31 expands and blocks the inside of the through hole 7a. In this embodiment, since the blocking member 6 is attached to the inner surface of the cylindrical body 4, it is possible to prevent the fire caused by the fire from directly hitting the mounting portion 61, and therefore it is possible to prevent the blocking member 6 from falling off the cylindrical body 4 at least until the first thermal expansion material 31 expands and blocks the inside of the through hole 7a.

The following describes the effects of the thermal expansion material mounting fixture 2 and fire-resistant compartment penetrator 1 of the above embodiment.

According to the thermal expansion material mounting fixture 2 of this embodiment, the extension holes 42a, 42b of the extension allowance portion 42 are provided in the adjacent portion 442, so that the thermal expansion material 3 provided inside the cylindrical body 4 can be expanded not only radially inward inside the cylindrical body 4, but also radially outward in the adjacent portion 442 via the extension allowance portion 42. Therefore, even if a step 4A is formed on the outer peripheral surface of the adjacent portion 442 and the width (gap) of the step 4A becomes larger due to the expansion of the thermal expansion material 3 caused by the outbreak of a fire, and a gap is formed between the outer peripheral surface of the cylindrical body 4 and the inner wall of the through hole 7a, the gap can be blocked by the thermal expansion material 3, and the through hole 7a formed in the partition body 7 can be completely blocked, thereby reliably suppressing the spread of fire.

In addition, by providing the extension holes 42b at multiple positions spaced apart in the axial direction of the adjacent portion 442, the thermal expansion material 3 can extend radially outward at multiple positions spaced apart in the axial direction of the adjacent portion 442. Therefore, even if the positional relationship between the inner wall of the through hole 7a and the cylindrical body 4 in the axial direction is shifted, the thermal expansion material 3 can close the gap formed between the outer circumferential surface of the cylindrical body 4 and the inner wall of the through hole 7a.

In addition, by providing the positioning portion 5 near the all-round extension allowance portion 421, the all-round extension allowance portion 421 can be abutted against one of the partition bodies 7 in a state where it faces the inner wall of the through hole 7a of one of the partition bodies 7. Therefore, when inserting the cylindrical body 4 through the through hole 7a, even if the all-round extension allowance portion 421 is hidden by the partition body 7 and cannot be seen, the positioning portion 5 can be abutted against the partition body 7 to set the all-round extension allowance portion 421 in an appropriate position facing the inner wall of the through hole 7a.

In addition, since the mounting portion 61 is attached to the inner peripheral surface of the cylindrical body 4, it is possible to prevent the fire from directly hitting the mounting portion 61 in the event of a fire. This prevents the blocking member 6 from falling off the cylindrical body 4, improving fire resistance.

Furthermore, since the blocking body 62 is disposed at a distance from one end side of the axial direction of the cylindrical body 4 to the other end side of the axial direction, the blocking member 6 can prevent the expanding thermal expansion material 3 from spreading in the axial direction. Therefore, the thermal expansion material 3 reliably spreads radially inward of the outer wall portion 41, so that the inside of the cylindrical body 4 can be reliably blocked with the thermal expansion material 3 to prevent the spread of fire.

In addition, since the outer wall portion 41 and the mounting portion 43 are arranged adjacent to each other in the axial direction, the blocking member 6 can be positioned close to the thermal expansion material 3. This reliably prevents the thermal expansion material 3 from expanding in the axial direction.

Furthermore, because the blocking member 6 is in the form of a deformable sheet, the radially inner end of the blocking body 62 can be deformed to match the outer shape of the elongated body 8 inserted into the cylindrical body 4. Therefore, the blocking body 62 can be provided regardless of the outer shape of the elongated body 8, so that the thermal expansion material 3 can be reliably prevented from expanding in the axial direction.

In addition, when a force pulling radially inward is applied to the blocking member 6, the blocking member 6 deforms in the opening direction with the bent portion 63 as a fulcrum, so that it is possible to prevent the mounting portion 61 of the blocking member 6 from being directly subjected to a force in a direction that would cause it to peel off from the mounted portion 43. This makes it possible to prevent the blocking member 6 from peeling off or falling off from the cylindrical body 4.

Furthermore, since the mounting portion 61 is located at one end of the cylindrical body 4 in the axial direction, it is easy to align the radially inner end of the blocking member 6 provided on the cylindrical body 4 with the outer shape of the elongated body 8.

Furthermore, the blocking member 6 has its outer edge portion attached to the cylindrical body 4 by the mounting portion 61, and its inner edge portion supported by the elongated body 8 by the pipe covering portion 621, so that both ends of the inner edge side and the outer edge side of the expansion restricting portion 622 are supported. Therefore, when the first thermal expansion material 31 attempts to expand toward one end in the axial direction, the expansion restricting portion 622 can reliably resist the expansion, so that the inside of the cylindrical body 4 can be reliably blocked by the thermal expansion material 3.

Furthermore, in the event of a fire, the blocking member 6 prevents the thermal expansion material 3 (first thermal expansion material 31) provided inside the cylindrical body 4 from expanding in the axial direction, reliably blocking the inside of the cylindrical body 4 with the thermal expansion material 3, while blocking the gap formed between the inner wall of the through hole 7a and the outer peripheral surface of the cylindrical body 4 with the thermal expansion material 3 extending from the extension holes 42a, 42b of the extension allowance portion 42. As a result, the inside of the through hole 7a can be completely blocked with the thermal expansion material 3, thereby preventing the spread of fire through the through hole 7a.

Furthermore, according to the fire-resistant compartment penetration device 1 of this embodiment, the thermal expansion material 3 installed inside the cylindrical body 4 can extend radially outward from the adjacent portion 442. Therefore, even if a step 4A is formed on the outer peripheral surface of the adjacent portion 442 and a gap is formed between the outer peripheral surface of the cylindrical body 4 and the inner wall of the through hole 7a by the step 4A, the gap can be blocked by the thermal expansion material 3, and the through hole 7a formed in the partition body 7 can be completely blocked, thereby reliably suppressing the spread of fire.

The thermal expansion material 3 is located radially outward of the inner portion 441 (radially inward of the outer portion 451). Therefore, the space between the inner portion 441 and the outer portion 451 of the inner portion 441 in the cylindrical body 4 is sealed with the thermal expansion material 3 located radially outward of the inner portion 441, and the gap between the outer peripheral surface of the cylindrical body 4 and the inner wall of the through hole 7a, which is generated when the inner portion 441 is pushed radially inward by the expansion of the thermal expansion material 3 located radially outward, can be sealed with the thermal expansion material 3 extending from the local extension allowance portion 425.

Furthermore, since the mounting portion 61 is attached to the inner peripheral surface of the cylindrical body 4, it is possible to prevent the fire from directly hitting the mounting portion 61 in the event of a fire. This prevents the blocking member 6 from falling off the cylindrical body 4, thereby improving the fire resistance.

In addition, since the blocking body 62 is positioned away from one end of the axial direction of the cylindrical body 4 toward the other end of the axial direction, the blocking member 6 can prevent the thermal expansion material 3 installed inside the cylindrical body 4 from spreading in the axial direction. Therefore, the thermal expansion material 3 reliably spreads radially inward of the outer wall portion 41, so that the inside of the cylindrical body 4 can be reliably blocked with the thermal expansion material 3 to prevent the spread of fire.

The above describes an embodiment of the present invention by way of example, but the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, we have described a case where the thermal expansion material mounting fixture 2 is inserted into a through hole 7a formed in a hollow wall, but this is not limited to the configuration, and the partition 7 may be a hollow wall or a hollow floor, or a solid wall or a solid floor.

In addition, in this embodiment, both the all-round extension allowance portion 421 and the local extension allowance portion 425 are provided, but this is not limited to the above configuration, and either one may be provided. For example, when the partition 7 through which the thermal expansion material mounting fixture 2 is inserted is provided with a single wall 71 such as a solid wall or a solid floor, even if a configuration is adopted that includes only either the all-round extension allowance portion 421 or the local extension allowance portion 425, the thermal expansion material 3 extending from the extension holes 42a, 42b of either the all-round extension allowance portion 421 or the local extension allowance portion 425 can close the gap between the through hole 7a and the adjacent portion 442.

Furthermore, the thermal expansion material mounting fixture 2 has been described as having a blocking member 6, and the blocking member 6 is attached to the inner peripheral surface of the cylindrical body 4, but this is not limited to such a configuration, and even if the blocking member 6 is included, the blocking member 6 can also be configured to be attached to the outer peripheral surface of the cylindrical body 4. It is also possible to have a configuration without the blocking member 6.

In addition, the cylindrical body 4 has been described as a single thin plate rolled into a cylindrical shape by hand, but it is not limited to this configuration. For example, it may be formed into a cylinder with an opening by combining multiple arc-shaped thin plates.

Although each extension allowance portion 42 has one extension hole 42a, 42b, the present invention is not limited to this configuration, and each extension allowance portion 42 may have a plurality of small holes arranged in a circumferential direction and penetrating in the radial direction, and the thermal expansion material 3 may extend radially outward from each of the plurality of small holes. Even when the extension holes 42a, 42b are provided, the extension holes 42a, 42b are not limited to being long holes extending in the circumferential direction, and may be configured as long holes extending in the axial direction or as long holes extending in a direction intersecting the axial direction and the circumferential direction. In short, the extension allowance portion 42 may be configured so that the thermal expansion material 3 arranged on the inner surface can extend radially outward. When the extension holes 42a, 42b are configured as long holes extending in the axial direction, the extension holes 42a, 42b are arranged at intervals in the circumferential direction, so that the thermal expansion material 3 can be reliably extended to the adjacent portion 442 even if the range of the inner portion 441 and the adjacent portion 442 changes.

In addition, the extension hole 42b as the local extension allowance portion 425 is formed so as to extend over the range of the inner portion 441 and the adjacent portion 442 of the cylindrical body 4, but it does not have to be formed in the inner portion 441, and it is sufficient that it is provided at least in the adjacent portion 442.

Furthermore, although the thermal expansion material 3 has been described as being attached to the cylindrical body 4 by the self-adhesive properties of the thermal expansion material 3 itself, this is not limited to such a configuration, and for example, the plate-shaped thermal expansion material 3 and the cylindrical body 4 can be bonded with an adhesive or the like, or can be configured to be engaged with the claw portion 411.

In addition, although the thermal expansion material 3 and the cylindrical body 4 are previously constructed as one unit, the present invention is not limited to this case, and the thermal expansion material 3 can be provided inside the cylindrical body 4 after the cylindrical body 4 is attached to the through hole 7a.

Furthermore, although the thermal expansion material 3 has been described as being in the form of a plate, this is not limiting, and the thermal expansion material 3 may be in the form of a paste, or may be in the form of a flexible foam that is elastically deformable. When using a paste-like thermal expansion material 3, for example, the thermal expansion material 3 filled in a bag can be provided inside the cylindrical body 4.

In addition, the cylindrical body 4 has been described as being a thin steel plate, but it is not limited to this configuration and can be made of various materials that are fire-resistant and can induce the thermal expansion material 3 placed inside to expand inward.

Furthermore, the cylindrical body 4 is a thin plate that is rolled into a cylindrical shape and inserted into the through hole 7a, but this configuration is not limited to this, and the cylindrical body 4 may be pre-formed into a cylindrical shape.

In addition, the positioning portion 5 is described as being made of a sponge material made of foamed resin, but is not limited to such a configuration. As long as the cylindrical body 4 can be positioned at a predetermined position in the through hole, for example, a marking for position confirmation may be provided on the outer peripheral surface of the cylindrical body 4. In such a configuration, the position of the cylindrical body 4 relative to the through hole 7a can be determined by aligning the marking with a predetermined position (for example, the position of the wall surface on the front side of the through hole 7a). Also, a configuration without the positioning portion 5 can be adopted. In such a configuration, for example, the position of the cylindrical body 4 relative to the through hole 7a can be determined using the one-circumference extension allowance portion 421 as a mark, or the position of the cylindrical body 4 relative to the through hole 7a can be determined using the amount of protrusion of one end of the cylindrical body 4 from the through hole 7a as a guide. In short, as long as the cylindrical body 4 can be positioned at an appropriate position relative to the through hole 7a, the specific configuration for this purpose is not limited.

Furthermore, while the blocking member 6 has been described as being folded once at the folding portion 63, the present invention is not limited to this configuration, and the folding portion 63 may be omitted, or the folding portion 63 may be folded multiple times.

In addition, although the expansion restricting portion 622 (blocking body portion 62) is described as being provided on the cylindrical body 4 so as to extend radially inward from the other axial end of the mounting portion 43, this is not limited to the configuration. If the blocking body portion 62 (expansion restricting portion 622) is located closer to the other end side than the one axial end of the cylindrical body 4, it functions as a resistance when the expanding thermal expansion material 3 tries to spread toward the one end in the axial direction, and the expansion restricting portion 622 can suppress the thermal expansion material 3 from spreading toward the one end in the axial direction.

Furthermore, although the mounting portion 61 has been described as being affixed to the mounting base 43, the present invention is not limited to such a configuration and can be configured to engage with the mounting base 43 in various ways. For example, the mounting portion 61 can be configured to be attached to the mounting base 43 by engaging with a claw provided on the mounting base 43.

In addition, although the blocking member 6 is described as being provided only at one axial end of the cylindrical body 4, this is not limiting, and the blocking member 6 can also be provided at both axial ends.

Furthermore, although the blocking member 6 is described as being attached at a position closer to one end in the axial direction than the outer wall portion 41, this is not limiting, and it may be attached, for example, to the inner surface of the outer wall portion 41. In such a configuration, the mounting portion 61 is located between the outer wall portion 41 and the thermal expansion material 3.

...

In addition, although the occlusion body 62 is described as being arranged such that at least a portion of it is spaced apart from one axial end of the cylindrical body 4 toward the other end, this is not the only possible configuration. For example, as shown in FIG. 12, when the mounting portion 61 is attached to the mounting portion 43, the boundary between the mounting portion 61 and the occlusion body 62 can be located at one axial end of the cylindrical body 4, and the occlusion body 62 can be configured to extend radially inward from the boundary toward the one axial end. Even with this configuration, it is possible to prevent the mounting portion 61 from being directly exposed to fire, compared to when the mounting portion 61 is attached to the outer circumferential surface of the cylindrical body 4. For the sake of explanation, the occlusion member 6 is highlighted in the enlarged view of FIG. 12.

Furthermore, the first thermal expansion material 31 has been described as being disposed only in the portion corresponding to the outer wall portion 41 and the extension allowance portion 42, but this is not limited to the above configuration, and it may be disposed so as to extend beyond the outer wall portion 41 to the one end side in the axial direction. For example, the first thermal expansion material 31 may be disposed so as to overlap the radially inner side of the blocking member 6 attached to the cylindrical body 4, and the end portion of the first thermal expansion material 31 on the one end side in the axial direction may be positioned in the middle portion of the blocking member 6 in the axial direction or in the one end portion in the axial direction. When a fire-resistant compartment penetration device 1 having such a configuration is installed in the through hole 7a, the portion of the blocking member 6 and the first thermal expansion material 31 overlapping the blocking member 6 blocks the space between the inner peripheral surface of the cylindrical body 4 and the outer peripheral surface of the elongated body 8.

1...fire-resistant compartment penetration tool, 2...thermal expansion material mounting tool, 3...thermal expansion material, 31...first thermal expansion material, 32...second thermal expansion material, 33...third thermal expansion material, 4...cylindrical body, 4A...step, 41...outer wall portion, 411...claw portion, 42...extension-permitting portion, 42a, 42b...extension hole, 421...peripheral extension-permitting portion, 425...local extension-permitting portion, 43...attached portion, 44...one end portion, 44a...one end locking portion, 441...inner side part, 442...adjacent part, 45...other end part, 45a...other end side locking part, 451...outer part, 46...peripheral mounting part, 5...positioning part, 6...blocking member, 61...mounting part, 62...blocking main body part, 621...piping covering part, 622...expansion restriction part, 63...bent part, 64...gap shielding part, 65...shape retention member, 66...double-sided tape, 7...partition body, 7a...through hole, 71...wall body, 8...long body

Claims (4)

A thermal expansion material mounting tool for installing a thermal expansion material that expands upon receipt of heat in a through hole formed to penetrate the inside of a building or a partition that divides the inside and outside of the building,
A cylindrical body having fire resistance and formed into a cylindrical shape so as to be insertable into the through hole,
The cylindrical body is
The thermal expansion material provided inside the tube is configured to be an outer wall for expanding mainly radially inward when the thermal expansion material expands due to heat,
an extension allowing portion that allows a portion of the thermal expansion material to extend to an external region radially outward of the cylindrical body;
The extension allowance portion is disposed at least in an adjacent portion adjacent to an inner portion disposed radially inward of the other circumferential end portion of the cylindrical body formed in a cylindrical shape on the other circumferential end side,
The adjacent portion is a thermal expansion material mounting fixture capable of installing the thermal expansion material on its inner surface side. The extension allowing portion includes an extension hole that penetrates the cylindrical body in a radial direction,
The thermal expansion material mounting fixture according to claim 1 , wherein the extension hole is configured to be a hole that is long in the axial direction, or a plurality of the extension holes are provided spaced apart in the axial direction. A thermal expansion material mounting tool for installing a thermal expansion material that expands upon receipt of heat in a through hole formed to penetrate the inside of a building or a partition that divides the inside and outside of the building,
The thermal expansion material is provided inside the cylindrical body, which is fire-resistant and formed into a cylindrical shape so as to be insertable into the through hole, and serves as an outer wall for expanding the thermal expansion material mainly radially inward, the thermal expansion material being provided inside the cylindrical body in a cylindrical shape;
The cylindrical body includes an inner portion disposed radially inward of the other circumferential end portion of the cylindrical body when the cylindrical body is formed into a cylindrical shape, and an adjacent portion adjacent to the inner portion on the other circumferential end side,
The adjacent portion is a thermal expansion material mounting fixture having an outer peripheral mounting portion capable of mounting a thermal expansion material on an outer peripheral surface thereof. A fire-resistant partition penetration device that is inserted into a penetration hole formed to penetrate the inside of a building or a partition body that divides the inside and the outside of the building,
The thermal expansion material mounting fixture has a fire-resistant cylindrical body that is formed into a cylindrical shape so as to be insertable into the through hole, and the thermal expansion material expands when exposed to heat,
The cylindrical body includes an inner portion disposed radially inward of the other circumferential end portion of the cylindrical body when the cylindrical body is formed into a cylindrical shape, and an adjacent portion adjacent to the inner portion on the other circumferential end side,
The fire-resistant compartment penetration device, wherein the adjacent portion is configured such that the thermally expansive material is capable of expanding radially outwardly at the adjacent portion.